<template>
  <view>
		<my-search @click="gotoSearch"></my-search>
    <!-- 使用自定义的搜索组件 -->
    <!-- <my-search :bgcolor="'pink'" :radius="3"></my-search> -->
    <!-- <my-search @click="gotoSearch"></my-search> -->

    <view class="scroll-view-container">
      <!-- 左侧的滑动区域 -->
      <scroll-view class="left-scroll-view" scroll-y="true" :style="{height: wh + 'px'}">
        <block v-for="(item, i) in cateList" :key="i">
          <view :class="['left-scroll-view-item', i === active ? 'active' : '']" @click="activeChanged(i)">{{item.cat_name}}</view>
        </block>
      </scroll-view>
      <!-- 右侧的滑动区域 -->
      <scroll-view scroll-y="true" :style="{height: wh + 'px'}" :scroll-top="scrollTop">
        <view class="cate-lv2" v-for="(item2, i2) in cateLevel2" :key="i2">
          <!-- 二级分类的标题 -->
          <view class="cate-lv2-title">/ {{item2.cat_name}} /</view>
          <!-- 当前二级分类下的三级分类列表 -->
          <view class="cate-lv3-list">
            <!-- 三级分类的Item项 -->
            <view class="cate-lv3-item" v-for="(item3, i3) in item2.children" :key="i3" @click="gotoGoodsList(item3)">
              <!-- 三级分类的图片 -->
              <image :src="item3.cat_icon"></image>
              <!-- 三级分类的文本 -->
              <text>{{item3.cat_name}}</text>
            </view>
          </view>
        </view>
      </scroll-view>
    </view>
  </view>
</template>

<script setup lang="ts">
import { $http, $showMsg } from '@/api/request';
import { setBadge } from '@/pages/utils';
const state = reactive({
	// 当前设备可用的高度
	wh: 0,
	cateList: [],
	active: 0,
	// 二级分类的列表
	cateLevel2: [],
	scrollTop: 0
})

const getCateList = async() => {
	const { data: res } = await $http.get('/api/public/v1/categories')
	if (res.meta.status !== 200) return $showMsg()
	state.cateList = res.message
	// 为二级分类赋值
	state.cateLevel2 = res.message[0].children
	console.log(state.cateList)
}


const sysInfo = uni.getSystemInfoSync()
state.wh = sysInfo.windowHeight - 50
getCateList()
const { wh, active, scrollTop, cateList, cateLevel2 } = toRefs(state)


const activeChanged = (i) => {
	state.active = i
	// 重新为二级分类赋值
	state.cateLevel2 = state.cateList[i].children
	state.scrollTop = state.scrollTop === 0 ? 1 : 0
}
const gotoSearch = () => {
	uni.navigateTo({
		url: '/subpkg/search/search'
	})
}
// 跳转到商品列表页面
const gotoGoodsList = (item) => {
	//switchTab
	uni.navigateTo({
		url: '/subpkg/goods_list/goods_list?cid=' + item.cat_id
	})
}
onMounted(() => {
	setBadge()
})
</script>

<style lang="scss">
.scroll-view-container {
	display: flex;

	.left-scroll-view {
		width: 120px;

		.left-scroll-view-item {
			background-color: #F7F7F7;
			line-height: 60px;
			text-align: center;
			font-size: 12px;

			&.active {
				background-color: #FFFFFF;
				position: relative;

				&::before {
					content: ' ';
					display: block;
					width: 3px;
					height: 30px;
					background-color: #C00000;
					position: absolute;
					top: 50%;
					left: 0;
					transform: translateY(-50%);
				}
			}
		}
	}
}

.cate-lv2-title {
	font-size: 12px;
	font-weight: bold;
	text-align: center;
	padding: 15px 0;
}

.cate-lv3-list {
	display: flex;
	flex-wrap: wrap;

	.cate-lv3-item {
		width: 33.33%;
		display: flex;
		flex-direction: column;
		justify-content: center;
		align-items: center;
		margin-bottom: 10px;

		image {
			width: 60px;
			height: 60px;
		}

		text {
			font-size: 12px;
		}
	}
}
</style>
